
.btn {
    margin: 20px;
    width: 130px;
    height: 40px;

    color: #fff;
    border-radius: 5px;
    padding: 10px 25px;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all .3s ease;
    position: relative;
    display: inline-block;
    box-shadow: inset 2px 2px 2px 0 rgba(255, 255, 255, .5), 7px 7px 20px 0 rgba(0, 0, 0, .1), 4px 4px 5px 0 rgba(0, 0, 0, .1)
}


.btn-12 {
    position: relative;
    right: 20px;
    bottom: 20px;
    border: 0;
    box-shadow: none;
    width: 130px;
    height: 40px;
    line-height: 42px;
    -webkit-perspective: 230px;
    perspective: 230px
}

.btn-12 span {
    background: #00acee;
    background: linear-gradient(0deg, rgba(0, 172, 238, 1) 0, rgba(2, 126, 251, 1) 100%);
    display: block;
    position: absolute;
    width: 100%;
    height: 40px;
    box-shadow: inset 2px 2px 2px 0 rgba(255, 255, 255, .5), 7px 7px 20px 0 rgba(0, 0, 0, .1), 4px 4px 5px 0 rgba(0, 0, 0, .1);
    border-radius: 5px;
    margin: 0;
    text-align: center;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transition: all .3s;
    transition: all .3s
}

.btn-12 span:nth-child(1) {
    box-shadow: -7px -7px 20px 0 #fff9, -4px -4px 5px 0 #fff9, 7px 7px 20px 0 #0002, 4px 4px 5px 0 #0001;
    -webkit-transform: rotateX(90deg);
    -moz-transform: rotateX(90deg);
    transform: rotateX(90deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px
}

.btn-12 span:nth-child(2) {
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px
}

.btn-12:hover span:nth-child(1) {
    box-shadow: inset 2px 2px 2px 0 rgba(255, 255, 255, .5), 7px 7px 20px 0 rgba(0, 0, 0, .1), 4px 4px 5px 0 rgba(0, 0, 0, .1);
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg)
}

.btn-12:hover span:nth-child(2) {
    box-shadow: inset 2px 2px 2px 0 rgba(255, 255, 255, .5), 7px 7px 20px 0 rgba(0, 0, 0, .1), 4px 4px 5px 0 rgba(0, 0, 0, .1);
    color: transparent;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    transform: rotateX(-90deg)
}

.btn-12:active span {
    background: linear-gradient(0deg, rgba(6, 68, 92, 1) 0, rgba(2, 126, 251, 1) 100%);
}